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 Posted: Mon Oct 10, 2011 5:14 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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Hi all, bought some brand new Bilstein rear shocks the other day. Fitted them and done less than 100 miles and the one is knocking its t*ts off. It was so bad that i have had to remove it and refit the old one i took off.
Its when the shock returns from being compressed that it knocks and vibrates through the rear of the car. With all the s**t roads in Wales it drove me round the bend. Slapped the old one back on and now its silent again, if not a little saggy.
Is this common. Just so i'm not going mad, their not specific sided are they?
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Posted: Mon Oct 10, 2011 5:17 am |
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Joined: Nov 27, 2010
Posts: 11519
Trade Rating: +10
Location: What's it to you? ? ?
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Oil or gas dampers?
If they are oil dampers did you prime them correctly before fitting or just bolt them straight on the car?
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Posted: Mon Oct 10, 2011 5:21 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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Gas dampers. They were only the cheap ones.
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Posted: Mon Oct 10, 2011 5:26 am |
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Joined: Nov 27, 2010
Posts: 11519
Trade Rating: +10
Location: What's it to you? ? ?
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Either a faulty damper or not fitted correctly.
Swop it over to the other side & see if it still knocks.
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Posted: Mon Oct 10, 2011 5:33 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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Fitment was fine. I swapped the New one for the old one, all well and good, nice and quite. Swapped them back fir the new one, drove up the street started knocking as soon as i pulled off the drive. Put the old one back on and its quite again so it cant be fittment i reckon. Yeah may try it on the other side now.
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Posted: Mon Oct 10, 2011 5:35 am |
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Joined: Sep 21, 2011
Posts: 317
Trade Rating: 0
Location: UK
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Are the bushes in place?
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Posted: Mon Oct 10, 2011 5:39 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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Yep, all brand new as their in the shock. They look like new. I thought bushes originally but had a look and their mint. Even when the shock is off its all smooth action when pressure is released but when it comes to the end of the action there's a little 'clonk'. When thats magnified eith the weight of the car the noise is mental.
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Posted: Mon Oct 10, 2011 5:48 am |
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Joined: Sep 21, 2011
Posts: 317
Trade Rating: 0
Location: UK
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Definitely sound faulty then, send them back.
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Posted: Mon Oct 10, 2011 8:20 am |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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Bilstein B4's will do this I'm afraid. Been there..
My mech became livid when I turned-up with a new set of these.
Turned out he was right: Much inferior to the OEM dampers in many ways.
However, after a fair few miles they seem to settle-down and are OK(ish)
but still knock on the out-stroke if you are not carefull.
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Mon Oct 10, 2011 9:52 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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These ones are BNE-6887 and were ok in the begining but after 100 miles they've started to knock.
Oops just checked, they are B4. Any way of stopping them.
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Posted: Mon Oct 10, 2011 10:25 am |
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Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
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I've had B4's on for ages and only knocking I've had was when the ball joint went, nothing to do with the dampers 
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Posted: Mon Oct 10, 2011 10:30 am |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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| Lee wrote: |
| I've had B4's on for ages and only knocking I've had was when the ball joint went, nothing to do with the dampers |
We're talking for the rear shocks I think.
| NathanG wrote: |
These ones are BNE-6887 and were ok in the begining but after 100 miles they've started to knock.
Oops just checked, they are B4. Any way of stopping them. |
Looking at your sig, are you lowered?
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Mon Oct 10, 2011 11:39 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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Yeah rear shocks indeed and yes im lowered at the back, not too sure how much, my calc's went somewhat wrong and went lower than i intended to.
Aint as low as this 206info
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Last edited by NathanG on Mon Oct 10, 2011 11:45 am; edited 1 time in total
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Posted: Mon Oct 10, 2011 11:44 am |
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Joined: Feb 07, 2010
Posts: 13077
Trade Rating: +65
Location: England
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B4's can't handle any more than 40mm
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Posted: Mon Oct 10, 2011 11:47 am |
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Joined: Feb 07, 2010
Posts: 314
Trade Rating: +1
Location: Ebbw Vagas (Wales)
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He other side is fine tho. Oh well i was thinking about taking it up about 30mm anyway.
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